fix for conic fuzz

tests/PathTest.cpp

Index: tests/PathTest.cpp
diff --git a/tests/PathTest.cpp b/tests/PathTest.cpp
index 483d14ec48c7d5e4d8b75497312bddef90c9e879..99a4e5b5af8a24b7fc5922d97708a8850e875f5d 100644
--- a/tests/PathTest.cpp
+++ b/tests/PathTest.cpp
@@ -157,6 +157,19 @@ static void test_fuzz_crbug_643933() {
     canvas->drawPath(path, paint);
 }
 
+static void test_fuzz_crbug_647922() {
+    auto surface(SkSurface::MakeRasterN32Premul(250, 250));
+    SkCanvas* canvas = surface->getCanvas();
+    SkPaint paint;
+    paint.setAntiAlias(true);
+    SkPath path;
+    path.moveTo(0, 0);
+    path.conicTo(SkBits2Float(0x00003939), SkBits2Float(0x42487fff),  // 2.05276e-41f, 50.125f
+            SkBits2Float(0x48082361), SkBits2Float(0x4408e8e9),  // 139406, 547.639f
+            SkBits2Float(0x4d1ade0f));  // 1.6239e+08f
+    canvas->drawPath(path, paint);
+}
+
 /**
  * In debug mode, this path was causing an assertion to fail in
  * SkPathStroker::preJoinTo() and, in Release, the use of an unitialized value.
@@ -4275,6 +4288,7 @@ DEF_TEST(PathContains, reporter) {
 }
 
 DEF_TEST(Paths, reporter) {
+    test_fuzz_crbug_647922();
     test_fuzz_crbug_643933();
     test_sect_with_horizontal_needs_pinning();
     test_crbug_629455(reporter);